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Kiyoumars Roushangar
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Journal Articles

Novel application of robust GWO-KELM model in predicting discharge coefficient of radial gates: a field data-based analysis

Kiyoumars Roushangar, Arman Alirezazadeh Sadaghiani, Saman Shahnazi
Journal of Hydroinformatics jh2023096.
DOI: https://doi.org/10.2166/hydro.2023.096
Date Online: 03 February 2023
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Journal Articles

The effect of triangular prismatic elements on the hydraulic performance of stepped spillways in the skimming flow regime: an experimental study and numerical modeling

Kiyoumars Roushangar, Samira Akhgar, Saman Shahnazi
Journal of Hydroinformatics (2022) 24 (2): 243–258.
DOI: https://doi.org/10.2166/hydro.2022.031
Date Online: 08 February 2022
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Journal Articles

Insights into the prediction capability of roughness coefficient in current ripple bedforms under varied hydraulic conditions

Kiyoumars Roushangar, Saman Shahnazi
Journal of Hydroinformatics (2021) 23 (6): 1182–1196.
DOI: https://doi.org/10.2166/hydro.2021.161
Date Online: 18 August 2021
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Journal Articles

Towards design of compound channels with minimum overall cost through grey wolf optimization algorithm

Kiyoumars Roushangar, Aida Nouri, Saman Shahnazi, Hazi Md Azamathulla
Journal of Hydroinformatics (2021) 23 (5): 985–999.
DOI: https://doi.org/10.2166/hydro.2021.050
Date Online: 19 July 2021
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Journal Articles

The potential of ensemble WT-EEMD-kernel extreme learning machine techniques for prediction suspended sediment concentration in successive points of a river

Kiyoumars Roushangar, Nasrin Aghajani, Roghayeh Ghasempour, Farhad Alizadeh
Journal of Hydroinformatics (2021) 23 (3): 655–670.
DOI: https://doi.org/10.2166/hydro.2021.146
Date Online: 22 February 2021
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Journal Articles

The potential of integrated hybrid pre-post-processing techniques for short- to long-term drought forecasting

Kiyoumars Roushangar, Roghayeh Ghasempour, Vahid Nourani
Journal of Hydroinformatics (2021) 23 (1): 117–135.
DOI: https://doi.org/10.2166/hydro.2020.088
Date Online: 09 December 2020
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Journal Articles

Modeling total resistance and form resistance of movable bed channels via experimental data and a kernel-based approach

Seyed Mahdi Saghebian, Kiyoumars Roushangar, V. S. Ozgur Kirca, Roghayeh Ghasempour
Journal of Hydroinformatics (2020) 22 (3): 528–540.
DOI: https://doi.org/10.2166/hydro.2020.094
Date Online: 17 February 2020
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Journal Articles

Prediction of sediment transport rates in gravel-bed rivers using Gaussian process regression

Kiyoumars Roushangar, Saman Shahnazi
Journal of Hydroinformatics (2020) 22 (2): 249–262.
DOI: https://doi.org/10.2166/hydro.2019.077
Date Online: 25 October 2019
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Journal Articles

Evaluation of the effective parameters on energy losses of rectangular and circular culverts via kernel-based approaches

Kiyoumars Roushangar, Ghazaleh Nasssaji Matin, Roghayeh Ghasempour, Seyed Mahdi Saghebian
Journal of Hydroinformatics (2019) 21 (6): 1014–1029.
DOI: https://doi.org/10.2166/hydro.2019.221
Date Online: 11 October 2019
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Journal Articles

Using multi-temporal analysis to classify monthly precipitation based on maximal overlap discrete wavelet transform

Kiyoumars Roushangar, Farhad Alizadeh
Journal of Hydroinformatics (2019) 21 (4): 541–557.
DOI: https://doi.org/10.2166/hydro.2019.021
Date Online: 10 May 2019
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Journal Articles

Influential parameters on submerged discharge capacity of converging ogee spillways based on experimental study and machine learning-based modeling

Kiyoumars Roushangar, Ali Foroudi, Mojtaba Saneie
Journal of Hydroinformatics (2019) 21 (3): 474–492.
DOI: https://doi.org/10.2166/hydro.2019.120
Date Online: 13 February 2019
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Journal Articles

Evaluation of the impact of channel geometry and rough elements arrangement in hydraulic jump energy dissipation via SVM

Kiyoumars Roushangar, Roghayeh Ghasempour
Journal of Hydroinformatics (2019) 21 (1): 92–103.
DOI: https://doi.org/10.2166/hydro.2018.028
Date Online: 26 November 2018
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Journal Articles

Scenario-based prediction of short-term river stage–discharge process using wavelet-EEMD-based relevance vector machine

Kiyoumars Roushangar, Farhad Alizadeh
Journal of Hydroinformatics (2019) 21 (1): 56–76.
DOI: https://doi.org/10.2166/hydro.2018.023
Date Online: 23 November 2018
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Journal Articles

Entropy-based analysis and regionalization of annual precipitation variation in Iran during 1960–2010 using ensemble empirical mode decomposition

Kiyoumars Roushangar, Farhad Alizadeh
Journal of Hydroinformatics (2018) 20 (2): 468–485.
DOI: https://doi.org/10.2166/hydro.2018.037
Date Online: 29 January 2018
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Journal Articles

Modeling open channel flow resistance with dune bedform via heuristic and nonlinear approaches

Kiyoumars Roushangar, Mohammad Taghi Alami, Seyed Mahdi Saghebian
Journal of Hydroinformatics (2018) 20 (2): 356–375.
DOI: https://doi.org/10.2166/hydro.2018.020
Date Online: 24 January 2018
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Journal Articles

Improving capability of conceptual modeling of watershed rainfall–runoff using hybrid wavelet-extreme learning machine approach

Kiyoumars Roushangar, Farhad Alizadeh, Vahid Nourani
Journal of Hydroinformatics (2018) 20 (1): 69–87.
DOI: https://doi.org/10.2166/hydro.2017.011
Date Online: 02 November 2017
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Journal Articles

A cost model with several hydraulic constraints for optimizing in practice a trapezoidal cross section

Kiyoumars Roushangar, Mohammad Taghi Alami, Vahid Nourani, Aida Nouri
Journal of Hydroinformatics (2017) 19 (3): 456–468.
DOI: https://doi.org/10.2166/hydro.2017.081
Date Online: 06 March 2017
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Journal Articles

Modeling scour depth downstream of grade-control structures using data driven and empirical approaches

Kiyoumars Roushangar, Samira Akhgar, Ali Erfan, Jalal Shiri
Journal of Hydroinformatics (2016) 18 (6): 946–960.
DOI: https://doi.org/10.2166/hydro.2016.242
Date Online: 15 July 2016
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Journal Articles

Studying of flow model and bed load transport in a coarse bed river: case study – Aland River, Iran

Kiyoumars Roushangar, Yousef Hassanzadeh, Mohammad Ali Keynejad, Mohammad Tagi Alami, Vahid Nourani ...
Journal of Hydroinformatics (2011) 13 (4): 850–866.
DOI: https://doi.org/10.2166/hydro.2010.010
Date Online: 17 December 2010
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